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Contact: Kelsey Jackson
JacksonKN@missouri.edu
573-882-8353
University of Missouri-Columbia
Caption: In the early stages of heart development, the heart is a tube that has uniform shape and does not have a clear atrium or ventricle. As development progresses, a single atrial and ventricle region begins to differentiate and spontaneous electrical activity beings in the atria and propagates to the ventricle.
Credit: Courtesy of Dr. Roger Markwald -- USC
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